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AISI 4140 Tšepe 1.7225 42CrMo4 SCM440
AISI 4140 Tšepe 1.7225 42CrMo4 SCM440
AISI 4140 Tšepe 1.7225 42CrMo4 SCM440
AISI 4140 Tšepe 1.7225 42CrMo4 SCM440

AISI 4140 Tšepe 1.7225 42CrMo4 SCM440

What is 4140 Steel? AISI 4140 steel ke alloy steel e nang le chromium, molybdenum, le manganese. E sebelisoa haholo liindastering tse ngata 'me ke khetho e ntle ka ho fetisisa ea thepa ka lebaka la ho thatafala ha eona, matla a holimo a mokhathala, le abrasion le ho hanyetsa tšusumetso. Ha se limaraka tse ngata tse ka tsamaellanang le ho feto-fetoha ha maemo le molemo oa 4140.
Kenyelletso ea sehlahisoa

AISI 4140 Alloy Steel ke tšepe e tloaelehileng ea chromium-molybdenum eo hangata e sebelisoang ka mor'a ho tima le ho halefa, ka matla a holimo, a thata haholo. Letlapa la alloy 4140 le lona le na le matla a phahameng a mokhathala le matla a matla a mocheso o tlase.

Gnee e na le molemo o moholo ho 4140 steel plate:

  • Lithane tse 1500+ tsa setoko sa letsatsi le letsatsi sa poleiti ea alloy ea 4140 kapa bar e bataletseng.
  • Hot rolled / annealed / Q+T (PH prehardened) boemo bo fumaneha.
  • Botenya 4-300mm bo fumaneha bakeng sa thomello ea matsatsi a 1-3.
  • Botenya ba 1-10mm letlapa le kolobisitsoeng le batang bakeng sa nako ea ho etella pele matsatsi a 30.
  • Seha ka bophara & sehiloeng ho bolelele tšebeletso fumaneha.
  • E etselitsoe ho mamellana le litšebeletso tse thata li fumaneha.
Lintlha tsa tekheniki
4140 Tlhophiso ea Kereiti

Ha re bua ka AISI 4140, ho bohlokoa ho utloisisa hore na nomoro ea kereiti e bolelang:

Nomoro Tlhaloso
4 E supa hore tšepe ea 4140 ke tšepe ea molybdenum, e bonts'ang hore e na le palo e phahameng ea molybdenum ho feta litšepe tse ling, joalo ka letoto la 1xxx.
1 E hlalosa hore tšepe ea 4140 e na le litlatsetso tsa chromium hape; ho feta 46xx tšepe mohlala.
40 E sebelisetsoa ho khetholla 4140 Steel ho litšepe tse ling letotong la 41xx.
4140 Steel E entsoe Joang?

AISI 4140 e entsoe ka ho beha tšepe, k'habone le likarolo tse ling tsa motsoako ka seboping sa motlakase kapa seboping sa oksijene. Lintho tse kholo tsa alloying tse kentsoeng ho AISI 4140 ke:

  • Chromium
  • Manganese
  • Molybdenum

Hang ha tšepe, k'habone le likarolo tse ling tsa motsoako li kopantsoe hammoho ka sebōpeho sa mokelikeli, e lumelloa ho pholile. Joale tšepe e ka 'na ea ntšoa; mohlomong ka makhetlo a mangata.

Ka mor'a hore annealing e phethoe, tšepe e futhumatsoa ho isa karolong e qhibilihisitsoeng hape e le hore e ka tšeloa ka foromo e lakatsehang 'me e ka sebetsa e chesang kapa e batang ka lirolara kapa lisebelisoa tse ling ho finyella botenya bo lakatsehang. Ehlile, ho na le lits'ebetso tse ling tse ikhethileng tse ka eketsoang ho sena ho fokotsa sekhahla sa leloala kapa ho ntlafatsa thepa ea mochini.

Thepa ea Mechini ea 4140 Steel

AISI 4140 ke tšepe e tlase ea alloy. Litšepe tse tlase tsa alloy li itšetleha ka likarolo tse ling ntle le tšepe le k'habone feela ho ntlafatsa thepa ea tsona ea mochini. Ho AISI 4140, litlatsetso tsa chromium, molybdenum, le manganese li sebelisoa ho eketsa matla le ho thatafala ha tšepe. Ho eketsoa ha chromium le molybdenum ke ka lebaka leo AISI 4140 e nkoang e le tšepe ea "chromoly".

Ho na le lisebelisoa tse 'maloa tsa bohlokoa tsa mochini oa AISI 4140, ho kenyelletsa:

  • Matla a Tensile: AISI 4140 tšepe hangata e na le sepheo sa "matla" a ka bang 95,000 psi.
  • Mathata
  • Ductility
  • Ho thatafala
Lintho tsa Lik'hemik'hale

Tafole e ka tlase e totobatsa sebopeho sa lik'hemik'hale tsa AISI 4140:

C Kr Mong Si Mo S P Fe
0.38-.43% 0.80-1.10% 0.75-1.0% 0.15-0.30% 0.15-0.25% 0.040% boholo 0.035% boholo Ho leka-lekanya

Ho eketsoa ha chromium le molybdenum ho khothalletsa ho hanyetsa ho bola. Molybdenum e ka ba molemo haholo ha o leka ho hanela kutu ka lebaka la chloride. Manganese ho AISI 4140 e sebelisoa ho eketsa boima ba 'mele le joalo ka deoxidizer. Ka litšepe tsa alloy, manganese e ka boela ea kopana le sebabole ho ntlafatsa machina le ho etsa hore ts'ebetso ea carburizing e atlehe haholoanyane.

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